Question

genetics and heredity
learning outcomes: upon completion of the study of this unit, you should be able to:

• relate the importance of chromosomes in the maintenance of characteristics of organisms.
• identify some of the major patterns of genetic inheritance.
• predict the genotypes and phenotypes that may result from specific genetic crosses.
• explain the relationship between dna and the expression of genetic traits in the cell.

chapter 23: basic genetics
a. what is genetics? you may have observed that sometimes brothers and sisters in the same family share similar traits (characteristics). they may all have the same hair color, eye color, or skin color. examine your traits. do you look like anyone in your family or do you have very different characteristics? you will learn how you got these traits when you study genetics. genetics is the science of heredity. heredity is the study of the way in which traits are passed on from parent to offspring.
review questions

1. a trait can also be called a/an ______________.
2. the science of heredity is called ______________.
3. heredity is the study of the way in which _________ are passed on from parent to offspring.
4. list three human traits.

b. variation. the specific traits an organism inherits are determined during the life process of reproduction. reproduction results in new organisms that closely resemble their parent(s). for example, dogs produce dogs, cats produce cats, and tulips produce tulips. a dog

Explanation:

Question 1

From the text "You may have observed that sometimes brothers and sisters in the same family share similar traits (characteristics)", we can see that a trait is also called a characteristic.

The text states "Genetics is the science of heredity", so the science of heredity is called genetics.

According to the text "Heredity is the study of the way in which traits are passed on from parent to offspring", so the blank should be filled with "traits".

Answer:

characteristic

Question 2